He was the only president to be elected to the House after his presidency.

He was the first to be elected president without receiving either the most popular votes or the most votes of the electoral college. Neither candidate, (John Quincy Adams or Andrew Jackson) had enough electoral votes.

He annually read the Bible from front to cover.

He was the first president married abroad. His wife, Louisa Catherine Johnson, was the only foreign first lady.

He was the son of John Adams, one of two father and son "sets" to be elected president. The other was George H. Bush and George W. Bush.

He argued before the Supreme Court on behalf of slaves from the ship Amistad who mutinied during their journey from Africa.